/*
 * Copyright (C) 2010 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.gallery3d.data;

import com.android.gallery3d.app.GalleryApp;

class ComboSource extends MediaSource {
	private static final String TAG = ComboSource.class.getSimpleName();
	private static final int COMBO_ALBUMSET = 0;
	private static final int COMBO_ALBUM = 1;
	private GalleryApp mApplication;
	private PathMatcher mMatcher;

	public ComboSource(GalleryApp application) {
		super("combo");
		Log.d(TAG, "ComboSource");
		mApplication = application;
		mMatcher = new PathMatcher();
		mMatcher.add("/combo/*", COMBO_ALBUMSET);
		mMatcher.add("/combo/*/*", COMBO_ALBUM);
	}

	// The only path we accept is
	// "/combo/{set1, set2, ...} and /combo/item/{set1, set2, ...}"
	@Override
	public MediaObject createMediaObject(Path path) {
		Log.d(TAG, "createMediaObject -- path: " + path.toString());
		String[] segments = path.split();
		if (segments.length < 2) {
			throw new RuntimeException("bad path: " + path);
		}

		DataManager dataManager = mApplication.getDataManager();
		switch (mMatcher.match(path)) {
		case COMBO_ALBUMSET:
			Log.d(TAG, "createMediaObject -- combo albumsets");
			return new ComboAlbumSet(path, mApplication,
					dataManager.getMediaSetsFromString(segments[1]));

		case COMBO_ALBUM:
			Log.d(TAG, "createMediaObject -- combo album");
			return new ComboAlbum(path,
					dataManager.getMediaSetsFromString(segments[2]),
					segments[1]);
		}
		return null;
	}
}
